US company claims coupling agent replaces organo-silanes and works in NR

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ERJ staff report (DS)

Charlotte, North Carolina — US distribution company Polytive International has introduced an additive which it claims can improve the coupling between various types of rubber and silica.

The material, known as PUCA 35R is a polyurethane-modified titanate and is said to be cost-effective when compared with conventional silane coupling agents. It is made by Industrial Products Manufacturing Company, based in Pune in India.

Polytive said the additive can be used as a complete or partial substitute for other silanes and claims it works…

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